Short Descriptions

A daemon that reorders hotplug events before submitting
them to udev, thus avoiding various
race conditions

udevsend

Delivers hotplug events to udevd

udevstart

Creates device nodes in /dev
that correspond to drivers compiled directly into the
kernel; it performs that task by simulating hotplug
events presumably dropped by the kernel before invocation
of this program (e.g., because the root filesystem has
not been mounted) and submitting such synthetic hotplug
events to udev

udevinfo

Allows users to query the udev database for information
on any device currently present on the system; it also
provides a way to query any device in the sysfs tree to help create udev rules

udevtest

Simulates a udev run for the given device,
and prints out the name of the node the real
udev would
have created or (not in LFS) the name of the renamed
network interface